Oil-cup.



PATENTED NOV. 1,1904.

A. UHRI & A. G. HOUOK.

OIL 0UP.

APPLICATION FILED JULY 27, 1903.

N0 MODEL.

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UNITED STATES Patented November 1, 1904.

PATENT Orrrcu.

OIL-CUP.

SPECIFICATION forming part of Letters Patent No. 773,829, dated November 1, 1904.

Application filed July 27, 1903. Serial N- l6'7,125. (No model.)

To (all whom, it may concern.-

Be it known that we, AUGUST UHRI and ARTHUR G. HOUCK, citizens of the United States, residing at Florence, in the county of Fremont and State of Colorado, have invented a new and useful Improvement in Oil-Cups, of which the following is a specification.

The object of our invention is to provide a cup of few and simple parts that may be more conveniently opened and closed than the ordinary cup and adapted to reliably feed thick oil or grease for lubricating purposes.

Our cup is specially'suited for use in roasters, kilns, &c., where an oil-cup is necessarily exposed to unusual heat.

The invention consists of the novel features and parts and combinations, which will now be described and claimed, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of our invention complete, the bayonet-slot on the opposite side being shown in dotted lines. Fig. 2 is a vertical section taken on line 2 2 of Fig. 1. Fig. 3 is a topplan view of our invention as it would appear with the ring out off at the top of the piston-rod, and Fig. 4 is a top plan view of the oil-cup proper with all the other parts removed. Fig. 5 illustrates our oil-cup provided with a helical spring.

The cup proper, A, of our device is cylindrical in shape, open at its upper end, and is provided below the cylindrical portion with the hexagonal portion a for engagement by a wrench or the like and terminating in' the reduced externally-threaded portion or nipple a.

Extending downwardly from the interior of the cup A. through the portions a and a, is the outlet-opening a controlled by the screw a which extends inwardly, preferably through the hexagonal section of the cup. at one side thereof. This screw has its head sunk into a recess a provided therefor in said side, which arrangement prevents the head of the screw from interfering in any way when a wrench is used on said hexagonal portion. The body A is also provided above the hexagonal portion a with lateral studs (0 for the purpose presently described.

The lid or cover B of the cup is open at its lower end, fits at such end on the body A, and is provided at its upper end with the exterior annular enlargement or head I). This enlarged portion is fluted around its periphery, as fully illustrated in Fig. 3, to aid in turning the said lid.

The cover B extends downwardly over the cylindrical portion A of the cup to a point preferably near the lower end thereof.

Attention is now called to the bayonet-slots b and b at the lower end of the cover B. These slots are alike and are diametrically opposite each other. The lower portion of each slot is vertical, (see Fig; 1,) and the-upper portion is slightly inclined in an upward direction, having at its outer end a slight recess formed in its lower wall and adapted to receive one of the pins a projecting from the side of the cup A.

Thecup A is provided with the piston O,

having the piston-rod 0 extending through a suitable bore If in the top 6 of the cover B and terminating at its upper end in a handle If. Near its lower end the piston-rod 0 is provided with an annular groove '0'. A coilspring D surrounds the piston-rod 0, with its lower end resting on the piston C and its upper end bearing against the top of the cover B around the bore 12*.

.The latch E is pivoted to the top of the cover B, at one side of the center thereof, and has a bore 6 adapted to register with the bore Z) of said cover, the piston-rod 0 extending through both apertures. This latch E is provided at its free end with the finger-piece a, so that when the piston-rod c is drawn outwardly against the action of the spring D till the annular groove 0 is in the same plane with the latch E the said latch may be moved edgewise to bring one of its sides into engagement with said groove to hold said piston-rod withdrawn.

The bayonet-slots 7) and b in the cover and the cooperating pins ain thecup take the place of screw-threads for securing the cover on the cup, by which arrangement the cover may be much more quickly placed upon the cup or removed therefrom than if the ordinary threaded connection between cover and cup were employed.

The cover is secured on the cup as follows: Turn the cover till the lower ends of the bayonet-slots are immediately above the pins 11/. Bear the cover down against the action of the spring 1) till the pins are brought to the upper end of the vertical portion of said slots. Then by means of the fluted top section Z) of the cover turn the same to the right till the pins are brought to the extreme ends of the bayonet-slots, and upon reaching the recesses 71 at said ends the upward action of the spring D upon the cover will cause the pins to engage said recesses, and. when thus engaged the cover will be securely held upon the cup.

The operation of the cup is as follows: When it is desired to refill the cup, the piston-rod c is pulled upwardly till the annular groove 0 is brought into its uppermost position in a plane with the latch E, which latch is then moved sidcwise into engagement with said groove. Next the cover is pushed downwardly to disengage the slots 5 from the pins 5*. The cover is then turned to the left till the pins are brought to the top ends of the vertical portions of the bayonet-slots, in which position the cover carrying with it the piston C can be lifted from the cup proper. The cup A is then filled with grease. The cover is replaced thereupon and fastened by means of the bayonet-slots and pins (4", as already described, and the latch E is then moved out of engagement with the groove 0, which permits the piston to be forced down by the action of the spring 1) and by its own weight upon the grease and causes the oil to begin feeding. The quantity of grease to be fed out of the cup will be regulated by the screw (4 It will be noticed that the spring not only operates to actuate the plunger to discharge the lubricant from the cup, but it also gives tension to the lid, and so acts to secure the fastening devices between the lid and body of the cup in engagement and at the same time permitting the ready detachment of such parts when desired.

Fig. 5 shows a cup provided with a helical spring which is adapted to fit down within itself and which may be used, if preferred.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

The grease-cup herein described, consisting of the cup proper having its upper end open and provided at its lower end with a dischargeoutlet and near said lower end with outward lyprojecting studs, ascrew controlling the outlet in the grease-clip, the cover open at its lower end, provided near said lower end with opposite bayonetslots having the wings inclined upwardly toward their closed ends and the depressions or seats at the upper closed ends of said inclined wings, said cover being closed at its upper} end and adapted to telescope at its lower end on the cup proper, and to engage by its bayonet-slots with the studs of the cup proper, and the upper closed end of said cover being provided with an opening for the piston-rod and also provided at said end with a corrugated handleflange, the piston operating within the cup, the rod secured to said piston and projecting upwardlythrough and above the top of the cover and provided comparatively near its lower end with an annular groove for the latch-plate,- and the latchplate pivoted at one end to and, upon the top of the cover and provided with an opening through which the pistona'odji projects, the walls of such opening surrounding the pistonrod, whereby the latch is held by the red at all times in position adjacent to t 1e said rod, and for adjustment into the annular groove of said rod, and the spring within the cup and cover and bearing between the piston and the top of the cover, all substantially as and for the purpose set forth.

AUGUST UHRI. ARTHUR G. HOUOK.

\Vitnesses:

DANIEL KNAPP, J. ALLEN SMITH. 

